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A Pb, Sr and Nd isotope study of the basement and mesozoic ring complexes of the Jos Plateau, Nigeria

✍ Scribed by A.P. Dickina; A.N. Halliday; P. Bowden


Book ID
113290556
Publisher
Elsevier Science
Year
1991
Weight
797 KB
Volume
94
Category
Article
ISSN
0168-9622

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Age and origin of the Nigerian mesozoic
✍ O. Breemen; J. Hutchinson; P. Bowden πŸ“‚ Article πŸ“… 1975 πŸ› Springer 🌐 English βš– 978 KB

Sixty-four Rb-Sr and two K-At isotopic measurements from seven ring complexes in central Nigeria provide evidence for a systematic age trend along a 200 km zone ranging from 1744-5 m.y. in the north to 154-4-4 m.y. in the south. A peak of anorogenie magmatism occurred in the Jos Plateau region about